my truck is set at 12 degrees witht the rpm at 900. toyota spec is m/t 700 rpm 12degree and A/t is 750rpm 12 degree. they tell you 700 because they want you to set timing without the centrifigual advance kicking in. but if i remember correctly it doesnt kick it till about 2000rpms. i know when i do timing belts one tooth off will make it idle fine but will have no top end. so if you truck is like that then maybe.

 

or if not lc has an adjustable cam sprocket for 22rs.